Hashimotos: Rarely Menstruating and TTC

Laura
I am 31, never  miscarried, no other kids. We've been TTC for 10 months. Generally healthy, I eat well and run about 6 miles a week. 
I was recently diagnosed with Hashimoto's Hypothroidism after my cycles were getting further and further apart... (31 days, 39 days, 47 days then 81 days)  my blood work showed that that TSH levels were over a 12.0. My doc just put me on 25mg of Synthroid and will increase it to 50mg after the next 2 weeks. 
I am not experiencing any other symptoms of this disease other than my longer than normal time span between periods.
Anybody else experiencing this? Anybody have a successful TTC? Suggestions or info would be greatly appreciated.